Abstract:
:Thirty patients underwent 16-section multi-detector row computed tomographic (CT) angiography of the thorax with retrospective electrocardiographic gating. Institutional review board approval was obtained for retrospective analysis of CT scan data and records; patient informed consent was not required. Images reconstructed at six different time points (0%, 20%, 40%, 50%, 60%, 80%) within the R-R interval on the electrocardiogram were analyzed by two radiologists for diagnostic quality, to identify suitable reconstruction intervals for optimal suppression of cardiac motion. Five regions of interest (left coronary artery, aortic root, ascending and descending aorta, pulmonary arteries) were evaluated. Best image quality was achieved by referencing image reconstruction to middiastole (50%-60%) for the left coronary artery, aortic root, and ascending aorta. The pulmonary arteries are best displayed during mid- to late diastole (80%).
journal_name
Radiologyjournal_title
Radiologyauthors
Hofmann LK,Zou KH,Costello P,Schoepf UJdoi
10.1148/radiol.2333030826subject
Has Abstractpub_date
2004-12-01 00:00:00pages
927-33issue
3eissn
0033-8419issn
1527-1315pii
2333030826journal_volume
233pub_type
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